Effectiveness and safety of bisphosphonates therapy in secondary osteoporosis in children Rocío Galindo Zavala; Rosa Bou-Torrent; Concepción Mir-Perelló; Soledad Martínez Regueira; Berta Magallares-López; Mireia López-Corbeto;

Pediatric research in Spain: Challenges and opportunities Laura Moreno-Galarraga; Cesar Gracía Vera; Irene Rivero-Calle; Federico Martinón-Torres; Ignacio Diez López; Fernando Cabañas; Cristina Calvo;

Vitamin D supplementation in the healthy pediatric population David Gonzalez Jiménez; Juan Rodríguez Delgado; Cristina Campoy; Rafael Galera Martínez; Mercedes Gil-Campos; Susana Redecillas Ferreiro; Miguel Sáenz de Pipaón; Rosaura Leis;